﻿using IGL_Talk_Win8.Common;
using IGL_Talk_Win8.Utils;
using System;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

// The Basic Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234237

namespace IGL_Talk_Win8
{
    /// <summary>
    /// A basic page that provides characteristics common to most applications.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        private NavigationHelper navigationHelper;
        private ObservableDictionary defaultViewModel = new ObservableDictionary();

        #region Properties

        /// <summary>
        /// This can be changed to a strongly typed view model.
        /// </summary>
        public ObservableDictionary DefaultViewModel
        {
            get { return this.defaultViewModel; }
        }

        /// <summary>
        /// NavigationHelper is used on each page to aid in navigation and
        /// process lifetime management
        /// </summary>
        public NavigationHelper NavigationHelper
        {
            get { return this.navigationHelper; }
        }

        #endregion Properties

        #region Constructor

        public MainPage()
        {
            this.InitializeComponent();
            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += navigationHelper_LoadState;
            this.navigationHelper.SaveState += navigationHelper_SaveState;

            Windows.UI.ApplicationSettings.SettingsPane.GetForCurrentView().CommandsRequested += MainPage_CommandsRequested;
            MessagesControl.DataContext = ChatConnection.Instance;
        }

        #endregion Constructor

        #region Events

        /// <summary>
        /// Dodaje nasz SettingsFlyout do panelu ustawień (prawy górny róg ekranu -> ustawienia)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="args"></param>
        private void MainPage_CommandsRequested(Windows.UI.ApplicationSettings.SettingsPane sender, Windows.UI.ApplicationSettings.SettingsPaneCommandsRequestedEventArgs args)
        {
            var loader = Windows.ApplicationModel.Resources.ResourceLoader.GetForCurrentView();

            Windows.UI.ApplicationSettings.SettingsCommand settings =
                new Windows.UI.ApplicationSettings.SettingsCommand("AppSettings", loader.GetString("SettingsLabel"), (handler) =>
                {
                    Settings settingsFlyout = new Settings();
                    settingsFlyout.Show();
                });

            args.Request.ApplicationCommands.Add(settings);
        }

        private void cmdSettings_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e)
        {
            Settings settingsFlyout = new Settings();
            settingsFlyout.ShowIndependent();
        }

        #endregion Events

        /// <summary>
        /// Populates the page with content passed during navigation. Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="sender">
        /// The source of the event; typically <see cref="NavigationHelper"/>
        /// </param>
        /// <param name="e">Event data that provides both the navigation parameter passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
        /// a dictionary of state preserved by this page during an earlier
        /// session. The state will be null the first time a page is visited.</param>
        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
        {
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="sender">The source of the event; typically <see cref="NavigationHelper"/></param>
        /// <param name="e">Event data that provides an empty dictionary to be populated with
        /// serializable state.</param>
        private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)
        {
        }

        #region NavigationHelper registration

        /// The methods provided in this section are simply used to allow
        /// NavigationHelper to respond to the page's navigation methods.
        ///
        /// Page specific logic should be placed in event handlers for the
        /// <see cref="GridCS.Common.NavigationHelper.LoadState"/>
        /// and <see cref="GridCS.Common.NavigationHelper.SaveState"/>.
        /// The navigation parameter is available in the LoadState method
        /// in addition to page state preserved during an earlier session.

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            navigationHelper.OnNavigatedTo(e);
        }

        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            navigationHelper.OnNavigatedFrom(e);
        }

        #endregion NavigationHelper registration
    }
}